Negative differential capacitance in ultrathin ferroelectric hafnia

Sanghyun Jo, Hyangsook Lee, Duk‐Hyun Choe, Jung-Hwa Kim, Yun Seong Lee, Owoong Kwon, Seung‐Geol Nam, Yoonsang Park, Kihong Kim, Byeong Gyu Chae, Sang‐Wook Kim, Seunghun Kang, Taehwan Moon, Hagyoul Bae, Jung Yeon Won, Dong‐Jin Yun, Myoungho Jeong, Hyun Hwi Lee, Yeonchoo Cho, Kwanghee Lee, Hyun Jae Lee, Sang‐Jun Lee, Kab-Jin Nam, Dong‐Jin Jung, Bong Jin Kuh, Daewon Ha, Yongsung Kim, Seongjun Park, Yunseok Kim, Eunha Lee, Jinseong Heo